C1381 Lexus Code - Acceleration Sensor Power Supply Voltage Malfunction
Quick Answer
The Skid Control ECU (Brake Actuator Assembly) receives signals from the Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly) via the Controller Area Network (CAN) communication system. Common causes include Acceleration Sensor Calibration, Faulty Acceleration Sensor (Airbag Sensor Assembly), Acceleration Sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C1381 Lexus indicates Acceleration Sensor Power Supply Voltage Malfunction.
- Common causes
- Common causes include Acceleration Sensor Calibration, Faulty Acceleration Sensor (Airbag Sensor Assembly), Acceleration Sensor harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C1381 Lexus Description
If there is trouble in the bus lines between the Acceleration Sensor (Airbag Sensor Assembly) and the CAN communication system, the DTC U0124 (Lost Communication with Lateral Acceleration Sensor Module) is output.
This Diagnostic Trouble Code (DTC) is also output when calibration has not been completed.
What are the Possible Causes of the DTC C1381 Lexus?
- Acceleration Sensor Calibration
- Faulty Acceleration Sensor (Airbag Sensor Assembly)
- Acceleration Sensor harness is open or shorted
- Acceleration Sensor circuit poor electrical connection
How to Fix the DTC C1381 Lexus?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1381 Lexus code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the C1381 Lexus code?
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Frequently Asked Questions about C1381 Lexus Code
1. What are the common symptoms of OBDII code C1381 in a Lexus related to Acceleration Sensor Power Supply Voltage Malfunction?
- Common symptoms include issues with acceleration, rough idling, reduced engine power, and potential stalling of the vehicle.
2. What could cause the OBDII code C1381 to trigger in a Lexus?
- The code may be triggered due to a malfunction in the acceleration sensor power supply voltage circuit, a faulty sensor, wiring issues, or a problem with the engine control module (ECM).
3. How serious is the Acceleration Sensor Power Supply Voltage Malfunction related to OBDII code C1381 in a Lexus?
- This issue can affect the performance and drivability of the vehicle, potentially causing safety concerns. It is important to address this problem promptly.
4. Can I continue driving my Lexus with the C1381 code indicating Acceleration Sensor Power Supply Voltage Malfunction?
- It is not recommended to continue driving the vehicle with this code present, as it can lead to further damage and safety risks. It is best to have the issue diagnosed and repaired as soon as possible.
5. What are some DIY repair tips for addressing the Acceleration Sensor Power Supply Voltage Malfunction in a Lexus?
- DIY repair tips may include checking the sensor connections, inspecting the wiring for any damage, and ensuring that the power supply to the sensor is stable. However, it is recommended to seek professional help for accurate diagnosis and repair.
6. How can I reset the OBDII code C1381 in a Lexus after addressing the Acceleration Sensor Power Supply Voltage issue?
- The code can be reset using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. After the repair is completed, it is important to reset the code to clear the error.
7. Is it common for the Acceleration Sensor Power Supply Voltage Malfunction to recur in a Lexus after being repaired?
- If the root cause of the issue is properly diagnosed and repaired, the likelihood of the problem recurring is low. Regular maintenance and inspections can help prevent such issues in the future.
8. How much does it typically cost to repair the Acceleration Sensor Power Supply Voltage Malfunction in a Lexus?
- The cost of repair can vary depending on the exact cause of the issue, labor rates, and the cost of parts. It is advisable to obtain quotes from reputable mechanics or dealerships for an accurate estimate.
9. Can a Lexus dealership service department help diagnose and repair the Acceleration Sensor Power Supply Voltage Malfunction indicated by the C1381 code?
- Yes, Lexus dealership service departments have specialized equipment and trained technicians who can diagnose and repair issues related to OBDII codes like C1381.
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